HD6432138SW datasheet(611/1061 Pages) RENESAS

611 / 1061 page

Section 19 A/D Converter

Rev. 4.00 Jun 06, 2006 page 557 of 1004

REJ09B0301-0400

Bit 5—A/D Start (ADST): Selects starting or stopping of A/D conversion. Holds a value of 1

during A/D conversion.

The ADST bit can be set to 1 by software, a timer conversion start trigger, or the A/D external

trigger input pin (

ADTRG).

Bit 5

ADST

Description

A/D conversion stopped

(Initial value)

Single mode: A/D conversion is started. Cleared to 0 automatically when conversion

on the specified channel ends

Scan mode: A/D conversion is started. Conversion continues sequentially on the

selected channels until ADST is cleared to 0 by software, a reset, or a

transition to standby mode or module stop mode

Bit 4—Scan Mode (SCAN): Selects single mode or scan mode as the A/D conversion operating

mode. See section 19.4, Operation, for single mode and scan mode operation. Only set the SCAN

bit while conversion is stopped.

Bit 4

SCAN

Description

Single mode

(Initial value)

Scan mode

Bit 3—Clock Select (CKS): Sets the A/D conversion time. Only change the conversion time

while ADST = 0.

Bit 3

CKS

Description

Conversion time = 266 states (max.)

(Initial value)

Conversion time = 134 states (max.)

HD6432138SW Datasheet(PDF) 611 Page - Renesas Technology Corp